What certificate did the calligraphy teacher get after submitting his calligraphy works?

Certificate obtained by calligraphy teacher after submitting calligraphy works:

1. Calligraphy Grade Certificate: It proves that the students' calligraphy level has reached a certain grade standard, which can be issued by the state or relevant industry associations.

2. Award certificate: Students have participated in calligraphy competitions and achieved good results. Teachers can also issue corresponding award certificates to students to prove their performance and achievements in the competition.